Gravity Points

Gravity Points is a digital “pen” created by Akimitsu Hamamuro that simulates the effect of gravity. It allows you to click a spot on the screen and create gravity points. The more gravity points you plot, the more the forces of gravity compete. You can even create a blac khole by having your gravity points absorb each other.

Another cool thing you can do is click and hold down the mouse button and then drag your gravity point across the screen. This will make the smaller particles chase the gravity point. There are also controls in the top right of the screen where you can change the number of particles present and turn on or off interference.